package org.apache.ddlutils.io;

        /*
         * Licensed to the Apache Software Foundation (ASF) under one
         * or more contributor license agreements.  See the NOTICE file
         * distributed with this work for additional information
         * regarding copyright ownership.  The ASF licenses this file
         * to you under the Apache License, Version 2.0 (the
         * "License"); you may not use this file except in compliance
         * with the License.  You may obtain a copy of the License at
         *
         *   http://www.apache.org/licenses/LICENSE-2.0
         *
         * Unless required by applicable law or agreed to in writing,
         * software distributed under the License is distributed on an
         * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
         * KIND, either express or implied.  See the License for the
         * specific language governing permissions and limitations
         * under the License.
         */

import javax.xml.transform.Source;
import javax.xml.transform.stream.StreamSource;
import javax.xml.validation.Schema;
import javax.xml.validation.SchemaFactory;
import javax.xml.validation.Validator;

/**
 * Helper class that validates a given document against the DdlUtils schema.
 *
 * @version $Revision: $
 */
public class ModelValidator {
    /**
     * Validates the given xml document using the Java XML validation framework.
     *
     * @param source The source object for the xml document
     * @throws DdlUtilsXMLException If the document could not be validated
     */
    public void validate(Source source) throws DdlUtilsXMLException {
        try {
            SchemaFactory factory = SchemaFactory.newInstance("http://www.w3.org/2001/XMLSchema");
            Schema schema = factory.newSchema(new StreamSource(getClass().getResourceAsStream("/database.xsd")));
            Validator validator = schema.newValidator();

            validator.validate(source);
        } catch (Exception ex) {
            throw new DdlUtilsXMLException(ex);
        }
    }
}
